Sole-leveling machine



(No Model.) 4 sheets-sheet 1.

E. C. J UDD. Y SOLE LBVLING MACHINE.

-'Pa.tented Apf.16,1a95.

INVENTGR:

(No Model.) 4 Sheets-Sheet 2.

E.4 C. J UDD. SULB LBVBLING MAGHINE.

15.537,774. PatentedApr16,1895.

WITNESSES: INVENTQR:

3. t e nu h S w Dv Vau h s 4,

S u. d 0 M m No. 537,774. "PatentedApn 16, 1895.

INVENTO-Fe:

(No Model.) 4 Sheets-Sheet 4. B.- C. J UDD. SOLE LBVELING MACHINE.

PatenL'edApr. 16, 18Q5.`

FTQ. III

WITNESSES.. jid-wam? C.' Judd.

INVENTOR lUNITED STATES PATENT Ormea.

EDYVARD O. JUDD, OF BOSTON, MAS'SAOHUSETTS.`

SOLE-LEVELING MACHINE.

SPECIFXGATION forming part of Letters Patent No. 537,774, dated April 16, 1895.4

Application led January 17, 18,95. Serial No. 535,268. (No model.)

,To @ZZ whom, it may concern,L

Be it known that I, EDWARD C; JUDD, a citi Zen of the United States, residing at Boston, in the county of Suffolk and State of Massachusetts, have invented new and useful Im provements in Sole-Leveling Machines, of which the following is a specification.

This invention relates to that type of sole leveling machines wherein a reciprocating or vibrating roller-leveler acts upon the sole of a boot or shoe carried by a longitudinally and laterally movable jack.

The chief object of the present invention is to provide a new and improved sole-leveling machine having twin jacks adapted to move laterally and longitudinally, and so constructed that While a boot or shoe on one jack is being acted upon by the sole-leveler, the attendant or operator can mount and prepare on the other jack another boot or shoe to be leveled, thereby increasing the efficiency of sole-leveling machines and producinga machine which is susceptible of rapidly leveling the soles of boots and shoes without loss ot' time.

The invention also has for its object to provide new and improved adjustable levelingrolls adapted to act upon shoe soles which vary in contour or shape, also to conform tothe angle at which the sole is presented and to equalize the pressure over the entire sole.

The in vention also has for its object to provide a pair of leveling-rolls adapted to act simultaneously on opposite sides of the sole of a boot or shoe, and mounted on independent axles or shafts carried by bearings on a suitable support, which bearings can be independently adjusted and rigidly held after ad justinent to vary the angle of inclination of the axles or shafts, and thus adapt the rolls to soles which vary in contour or shape, the construction being such that while the bearings of the axles or shafts can be held in fixed positions, the support which carries the bearings is adapted to freely rock or to be rigidly held in position as may be desired,whereby the leveling rolls are well adapted for operating on narrow and wide shoe soles and shoesoles having a fiat ball or fore part, and a curved shank, or a curved ball 0r fore part and a flat shank.

These objects are accomplished in the manner and by the means hereinafter described and claimed, reference being made tothe ac-` companying drawings, in which- Figure l is a side elevation of a sole-leveling machine embodying my invention. Fig. 2 is a top plan view of the same. Fig. 3 is a detail side elevation, showing a modified construction of the rotary support or turn-table for carrying the laterally swinging yokes which support the twin jacks. Fig. 4 is a detail front elevation of one pair of the leveling rolls and their carrier. Fig. 5 is a top plan view of the same, partly in horizontal section; Fig. 6, a front elevation, showing a modification of the devices for supporting and adjusting the leveling rolls." Fig. 7 is a diagram indicating the manner of vibrating the rolls which act on the ball or fore part of the sole. Fig. 8 is a broken detail view, to show the segmental slot in the arm or plate of each jackcarrying yoke for enabling the yoke to rock laterally. Fig. 9 is a diagram indicating the manner of vibrating the rolls which act on the shank of the sole. Fig. l0 is a sectional plan viewof the modified construction exhibited by Fig. 6; and Fig. 1l is a modification of the turn-table and rocking jack carrier or yoke.

In order to enable those skilled in the art to make and use my invention, I will now describe the same in detail, referring to the drawings, wherein- The numeral l indicates a main frame which may be of any suitable construction, and is provided with bearings in which a powershaft 2 is journaled and adapted to be rotated through the medium of pulleys or otherwise. The main frame is also provided with bearings, in which is mounted a transverse rockshaft, as at 3, provided at its ends, respectively, with longitudinally slotted crank-arms 5 and 6, carrying nuts 7 which are rendered adjustable through Vthe medium of screws 8 actuated by suitable handles 8a. The nuts are pivotally connected, respectively, with links 9 and l0, the link 9 being pivotally conneoted with a crank-arm 12, mounted on a shaft l2n having a crank 12'3 which carries a bell-crank 24a, hereinafter referred to. The

link lO is pivotally connected with a crankicc j arm 13, secured to orforming a part of-a trans'- verse shaft 17, on which is mounted a Wormwheel 18 engaging a worm 19 on a vertical shaft 2O adapted to be rotated by any suitable means, preferably by bevel-gear connections with the power-shaft, all in such manner that when the shaft 2O is rotated it imparts motion to the worm-Wheel and shaft 17, thereby operating the link to swing the arm 6 back and forth.

An eccentric 2l on the power-shaft 2 engages and operates the pitmau 16, and a similar eccentric 22 on the l,power-shaft, engages and operates a pitman 23. The pitmen 16 an 23 connect at their upper ends with bellcrank levers 24 and 24.

In the improved machi-ne there are two pairs of sole-leveling rolls 25 and 26, one pair being adapted to act upon the shank of the sole, and the other pair upon the ball or fore part of the sole. The two pairs of rol-ls are similar in construction, and are mounted and operated in a similar manner. The pair of leveling rolls which acts upon the ball or fore part of the sole is carried by a support 27, pivotally mounted at its center on a 'carrier orl head 28, adapted to be reciprocated or Vibrated through the medium of a yoke 29. The pair of leveling rolls which acts upon the shank of the sole is arranged on a support 30, pivoted at its center to a carrier or head 31.

The construction and operation of the soleleveling rolls will be better understoodby reference to Figs. 4 and 5, which are detail views of the carrier or head 28, support 27, and the rol-ls 25 and 26, which act upon the ball or fore part of the sole. The support 27 is centrally pivoted, as at 32, to a pendent part 33 of the carrier or head 28, and therefore the support 32 is adapted to rock or oscil-late laterally. The support 27 can however be rigidly loeked in a fixed position, relative tothe carrier or head 28, through the medi-um ofa pin, as at 34, passing into engagement with the carrier or head 28, through an upwardly projecting arm 35, forming part of the support 27.

The shafts 36 and 37 of the rolls 25 and 26 are independent of each other, and are mounted in independent bearings 38 and 39, provided with bolts 40 and 4l having at their inner ends heads 42 and 43 adapted to traverse dovetailed segmental grooves 44 and 45,

formed in the ends of the support 27. The

"outer-ends of the bolts 40 and 41, are provi-ded 47, While the machine is in operation for the purpose of adjusting the axles or shafts of the rolls to the desired angle of inclination. The two rolls act simultaneously upon opposite sides of the shoe-sole, for the purpose of leveling the same, and, as before stated, one pair ot' rolls acts upon the shank of the sole while the other pair acts upon the ball or fore part of the sole.

Inasmuch as the manner of supporting and adjusting the two pairs of rolls is the same in both instances, it is believed that the description of Figs. 4 and 5, is sufficient to give a clear understanding of the manner of carrying and adjusting both pairs of rolls.

If the pin be withdrawn from engagement with the carrier or head 28, the support 27 is free to oscillate or rock for the purpose of conforming to the angle at which the shoesole is presented by the jacks hereinafter described, and also for the purpose of equalizing pressure over the entire sole. It' the pin 34 be engaged with the arm 35 and carrier or head 28, the support 27 and the bearings 38 and 39 will be rigidly held in a fixed positionrelatively to the carrier-head 28.

In the modification, Figs. 6 and 10, the carrier or head 28 is provided with a plate 48 approximately circular in form and having a lug 49, and an arc-shaped groove or channel, in which an arc-shaped plate is adapted to work. The arc-shaped plate 50 is provided with an arm 51, and a pin 52 is adapted to engage the arm 51 with the lug 49, for the purpose of holding the arc-shaped plate 50 in a fixed position. It", however, the pin 52 is withdrawn from engagement With the lug 49, the arc-shapedplate 50 can slide in the arc of a circle within the groove of the plate 48. The bearings 53 and 54, Figs. 6 and 10, which carry the axles or shafts of the leveling-rolls 55 and 56, work in the ends of the arc-shaped plate 50, through the medium of bolts 4OfL and 4l, and hand-wheels 46"'t and 47a, similar to the bolts and 4l and hand-wheels 46 and 47. After the axles or shafts of the rolls 55 and 56 are adjusted to the desired angle of inclination, the bearings carrying said axles or shafts can be rigidly clamped to the arcshaped plate 50, and if the pin 52 be out-of engagement with the lug 49, both bearings 53 and 54 will move in unison with the arcshaped plate whenever the latter moves circularly in the groove of the plate 48. If the pin 52 be engaged with the lug 49 the arcshaped plate 50 will be held in a fixed position, and consequently the bearings 53 and 54 will also be held in a fixed position relatively to the plate 48 and carrier or head 28. The rockshaft 3 carries a rocking-arm or frame 55', on the outerend of which is mounted a turn-table 56, preferably in the form of a comparatively narrow elongated bar. This baris centrally pivoted, as at 57, to the rocking-arm or frame 55, and on the ends of the bar are centrally pivoted twin yokes 58, Within which are pivotally suspended the laterally ICO log

oscillating o r rocking twin jack-supporting yokes 59. The twin yokes 59 are each provided with a jack 60, 6l, of any ordinary type, adapted to carry and support the lasts on which the boots or shoes are to be placed. The bar or turn-table 56EL is adapted to be locked in a stationary position through the medium of a locking-bolt 62, adapted to be operated by a suitable lever 63, and each yoke 58 is also adapted to be rigidly locked to the bar or turn-table through the medium of a bolt 64, adapted to be operated by alever 65. The yokes 58 are each provided with a double armed pivoted lever, as at 66, one end 66a of which engages the jack-supporting yoke 59, while the other end 66h is provided with a bolt 67 having a hand-wheel 68. The bolt 67 is movable back and forth in a segmental slot 80, formed in an arm or `plate 69, which constitutes a rigid part of theyoke 58, so that when the hand-wheellis^tightened,.the yoke 59 is rigidly locked to the yoke'58,and` th ere fore the yoke 59 cannot oscillate or"` swing laterally. If, however, the hand-wheel 6`8Ais loosened, the yoke 59 is free to oscillate or` swing in a lateral direction. While the soleleveling rolls are acting upon the sole of a boot or shoe, the yoke`58, which carries the yoke 59 of the jack which supports such boot or shoe, is locked to the bar or turn-table 56a, and the latter is locked to the arm orframe 55, When the reciprocating link 10 rocks .the shaft 3, the frame 55a, and arms land 6,

are also rocked, and consequently the jacks are uniformly and slowly oscillated or rocked` -within which the jack-supporting-yokes 7l are pivot-ally suspended, so that they normally stand in the same longitudinal plane. The bar or turn-table 70 is centrally pivoted to the arm or frame 72 which corresponds with the arm or frame 55a, and the bar orturn-table 70 can bellocked to the arm or frame 72 through the medium of alocking-bolt 73, act-` uated by a lever 74 constructed the same as the bolt and lever 62 and 63. In the modification, Fig. 3, the laterally oscillating or rocking jack-supporting yokes 7l, may be provided with the devices described with reference to Fig. 1, or with any other suitable def vices, for the purpose of locking either or both of them to the bar or turn-table 70.

The upwardly projecting arm of the bellcrank lever 24 is pivotally connected by an adjustable rod 75 with a yoke 76, on the front end portion of which the carrier or head 3l is mounted. The upwardly projecting arm of the bell-crank lever 24 connects by a yoke 429 with levers 78 pivoted intermediate their extremities, as at 79, connected at their lower end with the carrier or head 28, in such manner that when the yoke 29 is reciprocated, the levers 78 are vibrated, and consequently the rolls 25 and 26, which act upon the ball or fore part of the shoe-sole are vibrated. The reciprocating motion of the yoke 76, caused by the swinging of the bell-crank lever 24, imparts a reciprocating or vibrating motion to the rolls 25 and 26 which act upon the shank ot' the shoe-sole.

The peculiar action of the arms 5 and 6 with crank-arms 12 and 13, the latter being driven by the main power-shaft 2, constitutes a part ofthe subject-matter of my application for Letters Patent tiled June 26, 1883,

Serial No. 478,785, and therefore I do not; deem be moved in a horizontalplane, and is so con-t strcted, and is provided with such devices, that a pair'of shoe-jacks can be mounted `thereupon to rock or swing laterally as well as longitudinally; and that the construction is such that a shoe can be placed on one of the jacks and the turn-table rotated horizontally to a given point, which places the shoe under the sole-leveling mechanism, while the other jack will be placed in such position that it is free from all obstructions, and the attendant or operator can place thereupon and prepare another shoe in readiness to be presented to the soleleveling mechanism when the turntable is rotated.

By my invention the sole-leveling rolls are engaged almost constantly in performing the work ot' leveling the soles of the boots or shoes, and the attendant or operator can readily keep the jack supplied without any considerable labor.

The combination and arrangement of parts renders the machine susceptible of leveling the soles of boots and shoes far more readily than sole-leveling machines having a single jack. l

Whilelhaveillustrated two jacks arranged in yokes supported bya rotatable bar or turntable, I do not confine myself to two jacks, as a greater number can be employed.

In the example illustrated in the drawings the rotatable bar or turn-table is designed to be turned by hand, or manually, but I do not IOO IIO

limit myself to this meansof turning the bar tate in a horizontal plane, and consequently they are in the best possible position for the attendant or operator to carefully place the shoes uponv the jacks and prepare them for the action of the leveling mechanism.

I believe that I am the first to provide a sole-leveling machine with sole-leveling mechanism and twin-jacks movable approximately in a horizontal plane, so that either can be moved beneath the sole-leveling mechanism while the other is free from obstruction and in convenient position for the attendant or operator to place a shoe thereupon and prepare it for the action of the leveling mechanism.

In acting on a sole having a flat ball or fore part and a curved shank, the carrier or head which supports the rolls acting on the ball or fore part can be locked against lateral rocking movements by a pinsimilar to the pin 34:, Fig. 4, conversely in acting on a sole having a iat shank and curved ball or fore part. The carrier or head which supports the rolls for acting on the shank can be locked against lateral rocking movements by a pin similar to pin 34:.

In operating on a narrow shoe, it is sometimes desirable and advisable to lock the jack against lateral swinging motions, and this can readily be effected through the medium of the hand-wheel 68, bolt 67, and segmentally slotted arm or plate 69. Sometimes a last is drilled at an angle, and it is desirable to set the jack at an angle to fulfill the conditions required, and this can readily be effected through the medium of the hand-wheel 68, bolt 67, and segmentally slotted arm or plate 69. Sometimes onepair of rolls take possession of a shoe-sole, and unless held in one position against laterally rocking motions, the shoe will be thrown out of position and unsatisfactory leveling will be the result. This can be avoided by permitting the carriers or heads, which carry the leveling rolls, to rock laterally by removing the pins 34, and locking a jack in the required position, or by locking one pair of rolls only. If the rolls or jack were rigid, as regards laterally swinging movements, there would be no yielding of the rolls or jack, and in operating on Very fine work, the shoe would not be leveled uniformly.

With the attachments herein described and shown each shoe maybe treated according to the conditions required, or as circumstances may demand.

In my invention one pair of rolls can be locked against lateral, oscillating movements, while the other pair can be permitted to oscillate or. rock laterally, and consequently the non-laterally swinging rolls take possession of the shoe-sole, and the other pair of freely oscillating rolls acts` in conjunction with the swinging jack to level certain kinds of shoes.

In operating on some kinds of shoes it is desirable to lock the yoke or yokes 59 against lateral oscillation, while the two pairs of leveling rolls are free to oscillate or rock laterally, so that they will pass over the shoe s ole and operate on the same in a perfect manner.

It will be obvious that the yoke or yokes 59 can be locked against laterally swinging motions, while the two pairs of leveling rolls can be Vpermitted to oscillate or rock laterally; also the two rolls acting on the ball or fore part of the sole can be locked against lateral oscillation While the yokes 59 and the rolls which act on the Shanks of the soles are free to oscillate laterally, or the shank rolls may be locked against lateral oscillation, `and the yokes 59 and the ball or 'fore part rolls permitted to swing laterally; also that the yokes 59 and the two pairs of rolls can be locked againstlateral oscillation; and tnally that the yokes 59 and the two pairs of rolls can be permitted to freely oscillate or rock laterally. By this mode of operation I am enabled to obtain all the adjustments necessary to meet every condition required, and render the rolls susceptible of leveling soles of various styles, patterns, or shapes.

Having thus described my invention, what I claim is 1. 'The combination in a sole-leveling machine, of sole-leveling rolls, laterally oscillating or rocking twin-jacks movable in a horizontal plane to place either jack beneath the sole-leveling rolls, and locking devices for locking the jacks against lateral oscillating or rocking motion whenever desired, substantially as described.

2. The combination in a sole-levelingmachine, of sole leveling rolls, a horizontally movable turn-table provided with laterally oscillating or rocking twin-jacks, and locking devices for locking the jacks against lateral oscillation or rocking motions whenever desired, substantially as described.

3. rl`he combination in a sole-leveling machine, of sole-leveling mechanism, a turn-table provided with rotatable twin-jack holders or yokes which carry laterally oscillatin g or rocking jacks, and devices for locking said holders to the turn-table, substantially as described.

4. The combination in a sole-leveling machine, of sole-leveling rolls, a turn-table provided with jack-supports adapted to rotate horizontally on the turn-table, and means for oscillating or rocking the turn-table longitudi nally, substantially as described.

5. The combination in a sole-leveling machine, of sole-leveling rolls, an oscillating or rocking support, a tu rrr-table pivotally mounted on said support, and laterally oscillating or rocking jack-carriers provided with jacks and supported by the turn-table, substantially as described.

6. The combination in a sole-leveling machine, of sole-leveling rolls, a turntable movable in an approximately horizontal plane, twin-yokes carried by the turn-table, laterally oscillating or rocking jack-carriers provided with jacks and mounted in said twin-yokes, and means for moving the turn-table longitudinally, substantially as described.

7. The combination in a sole-leveling machine, of vibrating leveling-rolls, a turn-ta- IOO ble movable in an approximately horizontal plane, pivotally mounted yokes carried by'the turn-table, laterally oscillating or rocking jack-supporting yokes suspended in the pivotally mounted yokes, devices for locking the said jack-supporting yokes againstlaterally oscillating or rocking movements Whenever desired, and devices for locking the pivotally mounted yokes to the turn-table, substantially as described.

S. The combinationl in a sole-leveling machine, of vibrating sole-leveling rolls, a rocking arm or frame, a turn-table mounted on said arm or frame and provided with laterally oscillating or rocking jack-supporting yokes provided with jacks, devices Jfor locking the said yokes against laterally oscillating or rocking movements whenever desired, and mechanism for rocking the said arm or frame, substantially as described.

9. The combination in a sole-leveling mat chine, ot' vibrating leveling-rolls, and a plu rality of laterally movable jacks mounted on a carrier or support which is movable in an approximately horizontal plane for bringing one jack into position under the vibrating leveling-rolls to be acted upon by the latter while the attendant or operator is placing and preparing another shoe on another jack, and means for operating said carrier or support to move the jacks longitudinally, substantially as described.

10. The combination in a sole leveling machine, ot" a support, a carrier or head pivotally mounted on said support and provided with sole-leveling rolls, means for locking the car rier or head to said support, whereby the rolls can be permitted to oscillate or rock laterally, or be held locked against such lateral oscillation, substantially as described.4

11. The combination in a sole-leveling machine, of a support, a carrier or head pivoted on said support and provided with sole-leveling rolls, the axes of which are adjustable to different angles of inclination, and locking devices for locking the carrier or head to said support, whereby the leveling rolls can be permitted to oscillate or rock laterally or be held rigid against such lateral oscillation, substantially as described.

12. The combination in a sole-leveling machine, of a suitable support, a carrier or head pivoted to said support and having segmental ways, bearings mounted in said Ways, leveling rolls mounted on independent axles or shafts in said bearings, devices for adjusting the bearings in the ways to change the angle of inclination of the roll-shafts, and means for locking the carrier or head to said sup` port, substantially as described.

In testimony whereof I have hereunto set my hand and aftixed my seal in presence of two subscribing witnesses.

EDWARD c. JUDD. [n s] Witnesses:

A. W. WoRTHLnv, `SIMON K. COHEN. 

